sensing the signal from a IC Pin
- From: "krishmaniac@xxxxxxxxxxx" <krishmaniac@xxxxxxxxxxx>
- Date: 11 Jul 2005 04:19:08 -0700
I am using a PWM chip. It has a pin where a capacitor and resistor are
connected. This capacitor and resistor controls the switching frequency
of the PWM signal. I have a control circuitary where i need to use the
signal at this pin where the capacitor and resistor are connected.
Whenever i try to connect my circuit i see random frequency being
created. I suppose the circuit i connected is affecting the WM chip. I
used a buffer to isolate it, but still the problem exists. Even when i
connect oscilloscope to see the signal at this pin i see
malfunctioning. do u have any idea how to use a signal at a pin without
affecting the functioning of the chip.
any suggestions...
kristo
.
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